Nurhanifah, U. et al. 2025. EFFECTIVENESS OF GROUP WORK USING POSITIVE REINFORCEMENT TO REDUCE OFF-TASK BEHAVIOR IN GRADE XI STUDENTS. Jurnal Bikotetik (Bimbingan dan Konseling: Teori dan Praktik). 9, 2 (Nov. 2025), 255–263. DOI:https://doi.org/10.26740/bikotetik.v9n2.p255-263.